I found a number for a repairman who had looked at it before and he came out and confirmed it. He swapped the transistors on the tube driver just to confirm it wasn't one of them and it did improve things a bit but the tint was still there and getting gradually stronger. He had a cuppa while we watched a bit of Fred Dibnah on UK history to see what was what and when I asked what I owed him he only wanted £5 to cover his petrol

The wife and I went out today and bought another 28", a Daewoo DUB-2850GB with built in DVB for £229 from Curry's and we are impressed with the picture quality now it's all set up. The digital receiver uses the same menus as my Aldi hard drive digibox so I don't need to learn anything new there